Home / 50,708.56-76,011.72-21,142.72

Finding the Fourth Proportional to 50,708.56, 76,011.72 and 21,142.72

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Solution

The fourth proportional to 50,708.56, 76,011.72 and 21,142.72 is: 31,692.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,708.56 : 76,011.72 = 21,142.72 : x
  2. Step 2: Convert to fraction form
    50,708.56/76,011.72 = 21,142.72/x
  3. Step 3: Cross multiply
    50,708.56x = 76,011.72 × 21,142.72
  4. Step 4: Simplify right side
    50,708.56x = 1,607,094,512.68
  5. Step 5: Solve for x
    x = 1,607,094,512.68/50,708.56
  6. Step 6: Final answer
    x = 31,692.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.